population mean
英 [ˌpɒpjuˈleɪʃn miːn]
美 [ˌpɑːpjuˈleɪʃn miːn]
网络 总体均值; 总体平均值; 总体均数; 表示总体均数; 总体平均数
双语例句
- We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.
我们有几种不同的方式去定义这个概念，萚鲇谖颐侵傅氖？样本均值还是总体均值。 - Hypothesis Testing of Normal Population Mean and Its Application in Excel
正态总体均值的假设检验及其在Excel中的实现 - The most stringent somewhere most powerful one sided test of the asymptotic multivariate normal population mean& The application of the ranked set sample;
最佳渐近正规估计量渐进多元正态总体均值最紧致某处最优势检验秩集样本的应用渐变为最大（G） - The strongly positive correlation between population mean and population variation decreased significantly compared the cysts per plant with transformed resistance value.
而单株抗病值的群体平均数与方差的相关性则明显降低。 - Returns the confidence interval for a population mean. See Help for the equation used
返回总体平均值的置信区间，有关方程式的详细信息，查看帮助 - The population mean, denoted m, is a population parameter and is the average of the population measurements.
一个人口参数是从所有的描述人口的一些方面的人口衡量被计算的数。 - Unsustainable, escalating fiscal costs of pensions, healthcare and other needs of an ageing population mean more real costs of retirement will soon fall on individuals, argues Knight Frank.
人口老龄化后的养老金、医保以及其它需求的财政支出节节攀升，难以为继，这意味着为退休人员支出的更多费用将会落到每个英国人头上，莱坊争辩说。 - A method for weighted data fusion to estimate the population mean-value of random variables
估计随机变量母体均值的加权数据融合方法 - To detect the content of homocysteine in serum of coronary heart disease group and of control group with fluorescence of polarization immunoassay. To compare the sample mean with population mean so that the relation between infection and homocysteine could be analyzed.
用荧光偏振免疫分析技术测定冠心病组和对照组血清中同型半胱氨酸含量，用样本均数与已知总体均数的比较方法分析感染因素与同型半胱氨酸浓度的相关性。 - The estimation for the population mean under PPS sampling scheme and the product estimation for population mean under simple random sampling scheme are two often methods in practice. Their theoretical research is very rich too.
PPS放回抽样方案下对总体均值的估计与简单随机抽样方案下对总体均值的乘积估计是实际应用相当广泛的两种抽样方法。 - The calculation formulas of sample size based on the error limitation are given for estimation of population mean.
对于样本均值估计总体均值，给出了基于误差限制的样本容量的计算式。 - Application of population mean of random variables to parachute Technology
随机变量总体均值在降落伞技术中的应用 - This paper deals with the estimation of population mean in systematic sampling by use of auxiliary information in order to improve the accuracy of the estimate.
讨论了等距抽样中，如何利用辅助信息改进总体平均值的估计，以达到提高估计精度之目的。 - The results of biochemical indices in human blood show that there are significant difference in the population mean of these indices between the LREE high region in South Jiangxi, China and the control.
赣南轻稀土高背景区和对照区人群血液生化指标检测结果显示，两区人群血液诸多生化指标的总体均数有显著性差异。 - In this paper, the authors give the mean precision of the ratio-type estimator for the population mean in the two-stage sampling, whose major term for large sample size is not worse than the mean precision of the unbiased estimator.
本文给出了两阶抽样中总体均值的比率型估计量的平均精度，它当样本容量充分大时主项不劣于无偏估计量的平均精度。 - The Interval Estimate of the Difference of Two Population Mean Value
两个母体均值之差的区间估计 - In a simple random sampling, the sample mean is an unbiased estimate of the population mean.
在简单随机抽样中，样本均值是总体均值的无偏估计。 - Regression estimation of population mean in systematic sampling
等距抽样中总体均值的回归估计 - In this paper, we research the PPS cluster sampling with auxiliary target, construct the PPS ratio estimators of population mean and population total, prove that the PPS ratio estimators are feasible and give the condition that the PPS ratio estimator is superior to PPS estimator.
本文研究有辅助指标的PPS整群抽样，构造了总体均值和总值的PPS比估计量，证明PPS比估计量是可用的，给出PPS比估计量优于PPS估计量的条件并讨论其优良性。 - We give the approximation formulas of the variance of the sample ratio estimator for a population mean and its asymptotically non-biased estimator in multi-stage sampling.
讨论多阶段抽样比率估计及其样本量选择的问题，给出了比率估计抽样均方误差的近似公式及其渐近无偏估计的公式。 - Conclusion: Two modified methods fulfilling the requirement of precision of estimating the population mean, directional micro-change test method based on approximation and approximation correction method, for sample size estimation based on width of confidence interval, were constructed.
结论：建立了两种满足对总体均数估计精度要求的求取基于置信区间宽度的样本含量估计值的改进算法，即基于近似值的定向微调尝试法和近似值校正法。 - Within population mean flowering times were related to latitudes, but 100 seed weight, fat and protein contents were not.
种群平均开花期与纬度有相关性，而百粒重、脂肪和蛋白质含量分布与纬度没有相关，与种群的生态和遗传背景有关。 - Other complex sampling methods often based on the results of a simple random sampling. For different sampling methods with the same sample size, the estimator variance of the population mean becomes an important sign to measure the accuracy of any sampling methods.
其他复杂的抽样方法常以简单随机抽样为基础，对于相同的样本容量条件下不同的抽样方法来说，总体均值估计量的方差就成为衡量各种抽样方法的有效程度的重要标志。 - Design of Intervals Estimation for a Single Normal Population Mean and the Difference between two Normal Population Means
单个正态总体均数和两个正态总体均数差别的区间估计设计 - The average heterosis of F2 over mid-parent based on population mean was-1.99% to 1.11% for all these traits. It suggests that little inbreeding depression exists for F2 and F3 seeds.
按群体平均数计算，这些性状F2的中亲优势仅为－1.99%～1.11%，这揭示出F2、F3近交衰退很少。 - Cytoplasmic effects also contributed to the population mean heterosis of some traits such as gel consistency and protein content.
细胞质效应对部分性状（如胶稠度、蛋白质含量）的群体平均优势有一定的作用。 - We also suggested some estimators of population mean, developing rate and total increasing amount and the mean and variance of the suggested estimators are obtained by the basic theorem.
文中还提出了若干总体均值、发展速度和增长量的估计量，并由基本定理点出了这些估计量的均值和方差。